All the Ports You Need The compact USB C dongle has perfectly combined all the essential features you need - extends a USB C Port to 4K HDMI output, USB 3.0, 100W PD3.0 charging female port, SD/TF card reader and 3.5mm audio jack. Ideal partner for laptop, computer, tablet and cellphone. Compatible with Windows 7/8/10/11/Chrome OS/Mac OS/iPad OS/Android etc. 4K USB-C to HDMI You can also use this mac mini dock as a USB C to HDMI adapter, mirror or extend your screen with the HDMI port and stream 4K UHD (up to 3840x2160@30Hz) or Full HD 1080p video to HDTV, monitors, or projectors. Also extend a 3D video game on your monitors or show your PPT through the projectors for office meetings. The 3.5mm headphone jack allows you to easily focus on a call or music. Powerful Pass-Through Charging This multiport USB C dock provides one Type-C pass through Female port by which you could securely charge your laptop while connecting multiple peripherals for data transferring and worry-free power storage. It Supports PD 3.0 pass-through at max 100W (minus 8W for operation), so you can power up your laptop while accessing the hubs other functions. Transfer Data in Seconds Speedily access your photos, videos, documents and other content with the USB 3.0 port (Up to 5Gbps) without buffering. Its lightweight and compact body also has built-in SD and TF slots that meet the USB 2.0 standard, allowing easy access to files from universal SD and Micro SD memory cards, the actual read rate depends on the device used. Note: The SD card slot and the TF card slot can't be used at the same time. Most Portable Size Design We are committed to concentrating all functions in a HUB the size of a sugar box, with a size of 2.36*1.96*0.39 inches and a weight of only 1.48oz, sleek & compact, tiny pocket size for convenient using at anywhere anytime. Built-in intelligent chip and integrated aluminum alloy shell make it strong and good heat dissipation, avoid over current, over voltage, short circuit and high temperature. In addition, we guarantee you a hassle-free 18-month warranty.